Almost every organized religion except, perhaps Buddhism, has a narrow fundamentalist, militant streak and aggressive fascist ideology along with its moral, humanitarian outlook. It is the fundamentalist / fascist, exclusivist streak which has been causing communal tensions and violence all over the globe. This book gives a comprehensive history of the Hindu fundamentalist organization called the Rashtrya Svaymsevak Sangh (RSS) from its origin in the early twentieth century up to last decade of 20th century. It highlights its ideology, its organizational set up, its militant posturing, training of its cadres, its dress code, its political goals, and its frontal organization & political face. It is a chronology of RSS's complete biographical profile.